256077890

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{157103}}^1$

素因数の和:157273

約数の個数: 16

約数和(自身を含む): 463771008

約数和(自身を除く): 207693118

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 157103, 314206, 785515, 1571030, 25607789, 51215578, 128038945, 256077890]

約数ペア:

[(1, 256077890), (2, 128038945), (5, 51215578), (10, 25607789), (163, 1571030), (326, 785515), (815, 314206), (1630, 157103)]